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231224s2012 xx |||||o 00| ||eng c |
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|a 10.2166/wst.2012.703
|2 doi
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|a pubmed24n0721.xml
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|a (NLM)22437027
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|a DE-627
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|e rakwb
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|a eng
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1 |
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|a Aceves-Lara, Cesar-Arturo
|e verfasserin
|4 aut
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|a Online estimation of VFA, alkalinity and bicarbonate concentrations by electrical conductivity measurement during anaerobic fermentation
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|c 2012
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 18.06.2012
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|a Date Revised 21.11.2013
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|a published: Print
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|a Citation Status MEDLINE
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|a This paper describes the use of electrical conductivity for measurement of volatile fatty acids (VFA), alkalinity and bicarbonate concentrations, during the anaerobic fermentation process. Two anaerobic continuous processes were studied: the first was a laboratory reactor for hydrogen production from molasses and the second was a pilot process for anaerobic digestion (AD) of vinasses producing methane. In the hydrogen production process, the total VFA concentration, but not bicarbonate concentration, was well estimated from the on-line electrical conductivity measurements with a simple linear regression model. In the methane production process, the bicarbonate concentration and the VFA concentration were well estimated from the simultaneous on-line measurements of pH and electrical conductivity by means of non-linear regression with neural network models. Moreover, the total alkalinity concentration was well estimated from electrical conductivity measurements with a simple linear regression model. This demonstrates the use of electrical conductivity for monitoring the AD processes
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|a Journal Article
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|a Bicarbonates
|2 NLM
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|a Fatty Acids, Volatile
|2 NLM
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|a Hydrogen
|2 NLM
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|a 7YNJ3PO35Z
|2 NLM
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|a Methane
|2 NLM
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|a OP0UW79H66
|2 NLM
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|a Latrille, Eric
|e verfasserin
|4 aut
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|a Conte, T
|e verfasserin
|4 aut
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|a Steyer, Jean-Philippe
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Water science and technology : a journal of the International Association on Water Pollution Research
|d 1986
|g 65(2012), 7 vom: 17., Seite 1281-9
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|x 0273-1223
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|g volume:65
|g year:2012
|g number:7
|g day:17
|g pages:1281-9
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|u http://dx.doi.org/10.2166/wst.2012.703
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